Solve the problem.On an average winter day in North Town a 24-hour heating and plumbing company receives 100 calls from customers requiring service. The number of calls varies, however, depending on the outside temperature (in degrees Celsius). Here is some data giving the number of calls as a function of the temperature. 
Sketch the given data on an appropriately scaled and labeled coordinate axes.
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Find the derivative of the function.s = sin 
- cos 
A. - 
cos 
- 
sin 
B. 
cos 
- 
sin 
C. cos 
+ sin 
D. 
cos 
+ 
sin 
Mathematics
Find the derivative.y = 2x2 + 7x + 4ex
A. 4x + 7 + ex B. 2x + 4ex C. 4x + 7 + 4ex D. 4x + 4ex
Mathematics
Express the limit as a definite integral where P is a partition of the given interval.lim
?0
?xk, [0, 6?]
A. 
dx
B. 
dx
C. 
dx
D. 
dx
Mathematics
Find the mean. Round to the nearest tenth when necessary.The numbers of miles John ran over the last six days were as follows: 5, 6, 10, 6, 12, 10
A. Mean = 6.7 miles B. Mean = 9.8 miles C. Mean = 8.7 miles D. Mean = 8.2 miles
Mathematics